How can you personally act as a steward of water,land and air resources?

Well, we can be steward of water, land, and air resources by doing a couple of simple thing ourselves, such as :
- Not throwing our waste on a pubic water source
- Lift up plastic or any non degradable material that we found on the ground
- Minimize the usage of Vehicles that use fossil fuels
Etc

Hope this helps you out

The four basic economic questions are (1) what goods and services and how much of each to produce, (2) how to produce, (3) for whom to produce, and (4) who owns and controls the factors of production.